3-Phase Transformers - Encapsulated (NEMA Rated)

• 480 VAC Primary to 208Y/120 VAC Secondary
• 480 VAC Primary to 240/120 VAC (center tap) Secondary
• 600 VAC Primary to 480Y/277 VAC Secondary
• 600 VAC Primary to 208Y/120 VAC Secondary

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction, performs a voltage conversion and provides isolation of two systems. In an isolation transformer, the primary and secondary windings are physically separated from each other.

Acme Transformers

• UL listed, CSA certified and UL type 3R enclosure
• Meets or exceeds all listing criteria including NEMA, ANSI and OSHA standards
• UL Class 180°C insulation system. 115°C rise
• Extra large front access wiring compartment through 9kVA
• Top access for easier installation and cooler case temperatures for 15kVA models
• Completely enclosed — suitable for indoor/outdoor service
• Excellent for dust or lint laden atmosphere
• Encapsulated — silica and resin compound completely encloses the core and coil
• High efficiency and excellent regulation
• Sound levels below NEMA standards
• Keyhole mounting slots permit installation of mounting bolts prior to hanging
• Lifting ears for easy installation (up to 9kVA)
• Wiring connections can be made outside of the wiring compartment due to the use of flexible leads
• 3-9 kVA have dual size knockouts in sides and bottom of wiring compartment
• Termination — copper lead wire
• Electrostatic shielding provided on all 60Hz isolation transformers

Features

• Fully encapsulated core and coil
• UL Type 3R enclosure
• Grounding studs for use with non-metallic conduit
• Copper lead wire for terminations
• Electrostatic shield standard
• Temperature range: -20°C [-4°F] to average ambient temperature 30°C [86°F], not to exceed 40°C [104°F] without derating the transformer.
• Maximum temperature rise: 115°C [239°F]
• BNFC (below normal full capacity) taps: 2
• Taps 5% per step
• Frequency: 60Hz